When Cisco Unity Connection is integrated with Cisco Unified
Communications Manager, the Cisco Unity Connection users cannot be created from
Cisco Unified Communications Manager. This document discusses how to
troubleshoot this issue.

The information in this document is based on these software and
hardware versions:

Cisco Unified Communications Manager 5.x/6.x/7.x

Any version of Cisco Unity Connection

The information in this document was created from the devices in a
specific lab environment. All of the devices used in this document started with
a cleared (default) configuration. If your network is live, make sure that you
understand the potential impact of any command.

When you try to create Cisco Unity Connection user from Cisco Unified
Communications Manager with the Create Cisco Unity User option
on the End User Configuration window, or when you attempt to
add users from the DN configuration page of the user or configuration page of
the end user, this error message is received:

On the Application Server Configuration page, in the
Available Application User field, check that the
Selected Application User field is same as the Cisco
Unified CM application user, for example, the user name that
Connection uses to log on to the AXL server.

In the Cisco Unity Connection server, create the CUCM application
user account with the administrator template and use the same password as you
have in the CUCM.

You can import the Cisco CallManager users to Cisco Unity Connection
in order to resolve this issue, which can be done through the Import
CallManager Users option in the Cisco Unity Connection
Administration.

Problem

During an attempt to add a new user to the Cisco Unity connection
server, the The Alias has already been assigned to another
object in this VMS Location error message appears.

Solution

This issue occurred because the corresponding user entries that you
attempted to add already existed in the Contacts list.
Delete those entries and try to import the user again in order
to resolve this issue.